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Oil level detection alarming device during vacuum oil injection of transformer

A technology of oil level detection and alarm device, which is applied in the direction of measuring device, lubrication indicating device, liquid level indicator for physical variable measurement, etc., can solve the problems of wasting oil resources, polluting the environment, errors, etc., and achieves the reduction of labor intensity and accurate Control and realize the effect of automatic oil injection

Active Publication Date: 2014-07-09
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the national standard, when oiling transformers above 35kv, vacuuming is required, and different vacuum requirements are set according to the voltage level. When vacuum oiling transformers, the previous practice is to judge the oil level position by hand, and when judging the position by hand There are often large errors, and moreover, the transformer oil is pumped out from the vacuum pumping unit due to inaccurate judgment, which wastes oil resources and pollutes the environment

Method used

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  • Oil level detection alarming device during vacuum oil injection of transformer
  • Oil level detection alarming device during vacuum oil injection of transformer

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Experimental program
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Effect test

Embodiment 1

[0015] The key component in the present invention is the oil level detection and alarm device, and the oil level detection and alarm device includes a detection device 3, a detection position adjustment device and a display and control instrument, wherein the display and control instrument is an intelligent instrument, which is connected to the detection device 3 through a cable , its internal circuit mainly includes CPU circuit, keyboard and display drive circuit, detection signal processing circuit and output drive circuit. The output control circuit is used to control the power supply and alarm of the oil injection machine; the keyboard circuit in the keyboard and display drive circuit is used for parameter input (oil level parameters, control parameters, etc.), and the display drive circuit is used for display of various parameter data. The detection signal processing circuit is used to process the detection signal of the detection device, and send it to the CPU circuit for...

Embodiment 2

[0019] The difference between this implementation and Embodiment 1 is that the detection device adopts an ultrasonic detection component, and the ultrasonic detection component includes an ultrasonic transmitting device and an ultrasonic receiving device.

Embodiment 3

[0021] The difference between this implementation and Embodiment 1 is that the detection device adopts a capacitance detection component.

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Abstract

The invention discloses an oil level detection alarming device during vacuum oil injection of a transformer. The oil level detection alarming device comprises a communication pipe and a valve, wherein the communication pipe is connected with the bottom valve of the transformer and a top flange; and the oil level detection alarming device is arranged on the upper part of the communication pipe and is fixed by a fixed piece. By utilizing the device, vacuum oil injection of the transformer is accurately controlled under an unmanned operation condition, and the oil level of the injected oil is adjusted according to the specific condition; and meanwhile, the manual attendance is realized under the condition of a damaged instrument and the device is accurately controlled, so that the labor intensity of operation personnel is lightened, the automatic oil injection is realized, and a requirement on modern automation production is met.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing technology, in particular to a transformer vacuum oil filling oil level detection and alarm device. Background technique [0002] According to the national standard, when oiling transformers above 35kv, vacuuming is required, and different vacuum requirements are set according to the voltage level. When vacuum oiling transformers, the previous practice is to judge the oil level position by hand, and when judging the position by hand There are often large errors, and moreover, the inaccurate judgment causes the transformer oil to be extracted from the vacuum pumping unit, which not only wastes oil resources but also pollutes the environment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a transformer vacuum oil filling oil level detection and alarm device. [0004] In order to solve the above technical problems, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/292G01F23/296G01F23/26
Inventor 王书湘霍新德尹继东周雪涛段文华
Owner STATE GRID CORP OF CHINA
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